Dodge Sprinter 2006 Manual page 366

BRAK ES (CAB)
N O COMMU N ICATION WITH B U S —
TES T
2 Tu r n t h e ign it ion off.
Usin g a volt m et er, con n ect on e en d t o t h e CAN cir cu it t h a t pr eviou sly m ea su r ed
a bove 3.0 volt s, a n d t h e ot h er en d t o gr ou n d.
N OTE: Re fe r to th e w irin g d ia g ra m s in th e s e rv ic e in fo rm a tio n to h e lp
d e te rm in e w h ic h m o d u le s a re c o n n e c te d to th e CAN B u s .
N OTE: Wa it o n e m in u te , a fte r tu rn in g th e ig n itio n o ff, be fo re d is c o n n e c tin g
th e m o d u le .
Discon n ect a m odu le t h a t is con n ect ed t o t h e CAN bu s.
Tu r n t h e ign it ion on .
Mon it or a n d n ot e t h e volt m et er r ea din g.
Repea t t h is pr ocedu r e u n t il eit h er t h e volt a ge r ea din g dr ops below 3.0 volt s or a ll
m odu les t h a t a r e con n ect ed t o t h e CAN Bu s a r e discon n ect ed a n d t h e volt a ge r ea din g
r em a in s a bove 3.0 volt s. Th en , pr oceed t o t h e con clu sion qu est ion .
Wh a t is t h e ou t com e?
> 3.0 volt s w/a ll m odu les discon n ect ed
< 3.0 volt s a ft er discon n ect in g a m odu le
3 Tu r n t h e ign it ion off.
Discon n ect t h e In st r u m en t Clu st er h a r n ess con n ect or s.
Discon n ect t h e n ega t ive ba t t er y ca ble.
Mea su r e t h e r esist a n ce bet ween gr ou n d a n d t h e CAN C Bu s (+) cir cu it .
Mea su r e t h e r esist a n ce bet ween gr ou n d a n d t h e CAN C Bu s (-) cir cu it .
Is t h e r esist a n ce below 50.0 oh m s on eit h er cir cu it ?
Yes
No
4 Tu r n t h e ign it ion off.
Discon n ect t h e n ega t ive ba t t er y ca ble.
Usin g a n oh m m et er, con n ect on e en d t o t h e CAN Bu s cir cu it t h a t pr eviou sly
m ea su r ed below 50.0 oh m s a n d t h e ot h er en d t o gr ou n d.
N OTE: Re fe r to th e w irin g d ia g ra m s in th e s e rv ic e in fo rm a tio n to h e lp
d e te rm in e w h ic h m o d u le s a re c o n n e c te d to th e CAN B u s .
Discon n ect a m odu le t h a t is con n ect ed t o t h e CAN Bu s.
Mon it or a n d n ot e t h e oh m m et er r ea din g.
Repea t t h is pr ocedu r e u n t il eit h er t h e r esist a n ce r ea din g goes a bove 50.0 oh m s or a ll
m odu les t h a t a r e con n ect ed t o t h e CAN Bu s a r e discon n ect ed a n d t h e r esist a n ce
r ea din g r em a in s below 50.0 oh m s. Th en , pr oceed t o t h e con clu sion qu est ion .
Wh a t is t h e ou t com e?
< 50.0 oh m s w/a ll m odu les discon n ect ed
>50.0 oh m s a ft er discon n ect in g a m odu le
ACTION
Repa ir t h e CAN C Bu s (+) cir cu it or t h e CAN C Bu s (-) cir cu it for
a sh or t t o volt a ge.
P er for m BODY VE RIF ICATION TE ST - VE R 1.
Repla ce t h e m odu le t h a t ca u sed t h e volt a ge r ea din g t o dr op a ft er
discon n ect in g it .
P er for m BODY VE RIF ICATION TE ST - VE R 1.
→ Go To 4
→ Go To 5
Repa ir t h e CAN C Bu s (+) cir cu it or t h e CAN C Bu s (-) cir cu it for
a sh or t t o gr ou n d.
P er for m BODY VE RIF ICATION TE ST - VE R 1.
Repla ce t h e m odu le t h a t ca u sed t h e r esist a n ce r ea din g t o in cr ea se
a ft er discon n ect in g it .
P er for m BODY VE RIF ICATION TE ST - VE R 1.
Co n tin u e d
50
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